US 12,462,952 B2
Cable with abnormality precursor detection function and electric wire abnormality precursor detection device
Hirokazu Komori, Osaka (JP); Makoto Higashikozono, Osaka (JP); Fujio Sonoda, Osaka (JP); Takahiro Murata, Mie (JP); and Kenta Kobayashi, Mie (JP)
Assigned to AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 18/035,866
Filed by AUTONETWORKS TECHNOLOGIES, LTD., Mie (JP); SUMITOMO WIRING SYSTEMS, LTD., Mie (JP); and SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
PCT Filed Jun. 3, 2021, PCT No. PCT/JP2021/021194
§ 371(c)(1), (2) Date May 8, 2023,
PCT Pub. No. WO2022/107364, PCT Pub. Date May 27, 2022.
Claims priority of application No. 2020-193786 (JP), filed on Nov. 20, 2020.
Prior Publication US 2023/0420158 A1, Dec. 28, 2023
Int. Cl. H01B 7/32 (2006.01); G01R 31/58 (2020.01); H01B 13/24 (2006.01)
CPC H01B 7/32 (2013.01) [G01R 31/58 (2020.01); H01B 13/24 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A cable with an abnormality precursor detection function, comprising:
one or more target electric wires each including an electric wire conductor and an electric wire coating that covers an outer periphery of the electric wire conductor;
one or more detection wires each including a detection wire conductor and a detection wire coating that covers an outer periphery of the detection wire conductor; and
a sheath that covers an outer periphery of an electric wire group including the one or more target electric wires and the one or more detection wires,
wherein the detection wire conductor has lower bending resistance than the electric wire conductor,
the sheath is an extruded body that is directly in close contact with the outer periphery of the electric wire group or is in close contact with a surface of an inner peripheral layer that is in close contact with the outer periphery of the electric wire group and covers the electric wire group,
the one or more detection wires comprise a plurality of detection wires,
respective detection wire conductors included in the plurality of detection wires differ in bending resistance from each other,
the plurality of detection wires include a first detection wire including a first detection wire conductor and a second detection wire including a second detection wire conductor,
the first detection wire conductor is composed of a strand of a first metal material, and
the second detection wire conductor is composed of a strand of a second metal material that has higher bending resistance than the first metal material,
the plurality of detection wires further include a third detection wire including a third detection wire conductor, and
the third detection wire conductor includes both a strand of the first metal material and a strand of the second metal material, and has a bending resistance that is higher than the bending resistance of the first detection wire conductor and lower than the bending resistance of the second detection wire conductor.